Bolts and screws are two of the most used and helpful types of fastener. Both are largely utilised in all manufacturing and construction industries.
Albeit they have specific features that make them suitable for different applications, often a clear distinction between them is not easy to define.

Screws and bolts have characteristics that are common to both.
Thus, in order to classify all different types, it is necessary to take into consideration their own intended purposes.
Bolts are designed to be used in pre-existing threaded holes and are secured by using nuts, whereas screws can be inserted into pre-tapped holes. However, screws can also perforate a material and create their own internal threads.
As a result, unlike a screw that can work on its own, a bolt requires a nut to secure it.
In addition, bolts are slightly bigger than screws and are medium to high tensile whilst screws are only low tensile.
Moreover, some types of bolts have a plain unthreaded shank whereas screws are always fully threaded.
In practice, the non-threaded segment of bolts acts as a dowel, pinning the joint against sideways shear forces.
That make bolts suited for heavy duties in steel constructions and generally for all applications where ensuring an adequate tightening torque is critical.
As a wholesale fastener supplier, VIPA offers a large selection of bolts and screws with different sizes and lengths, including metric and inch threads.
The qualified staff of VIPA is always prompt to assist clients in purchasing the right products according to their particular needs.